<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>

    <script src="https://lf3-cdn-tos.bytecdntp.com/cdn/expire-1-M/vue/2.6.14/vue.js" type="application/javascript"></script>
</head>
<body>
    <div id="app">
        <son :username="username" :age="age"></son>
    </div>
</body>
<script >
    Vue.component('son', {
        props:['username'],
        template: `<div>子组件{{username}},{{$attrs.age}}</div>`
    })
    new Vue({
        el: '#app',
        data() {
            return {
                username:'dd',
                age:10
            }
        }
    })
</script>
</html>
